公开(公告)号：US20220123977A1

公开(公告)日：2022-04-21

申请号：US17451209

申请日：2021-10-18

申请人： XCOM Labs, Inc.

发明人： Jing Jiang ,  Anthony Edet Ekpenyong ,  Mark Vernon Lane ,  Michael J. Roe ,  Liang Mei ,  Hassan Ghozlan ,  Tamer Adel Kadous

IPC分类号： H04L27/26 ,  H04L5/00 ,  H04L5/14

摘要： Aspects of this disclosure relate transmitting and/or receiving reference symbols. A first reference symbol includes a symbol and a cyclically shifted portion of the symbol, where the cyclically shifted portion has cyclic shift length. A second reference symbol includes a cyclically shifted version of the first reference symbol that is cyclically shifted relative to the first reference symbol by the cyclic shift length. The first and second reference symbols are transmitted consecutively from at least one antenna.

公开(公告)号：US11831480B2

公开(公告)日：2023-11-28

申请号：US17451232

申请日：2021-10-18

申请人： XCOM Labs, Inc.

发明人： Jing Jiang ,  Anthony Edet Ekpenyong ,  Mark Vernon Lane ,  Michael J Roe ,  Liang Mei ,  Hassan Ghozlan ,  Tamer Adel Kadous

IPC分类号： H04B7/06 ,  H04L27/26 ,  H04L5/14 ,  H04L5/00

CPC分类号： H04L27/2605 ,  H04B7/0626 ,  H04L5/0048 ,  H04L5/14 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2634 ,  H04L27/2675 ,  H04L27/2678

摘要： Aspects of this disclosure relate receiving a reference symbol from at least one antenna. The reference symbol includes a portion of a first transmitted reference symbol and a portion of a second transmitted reference symbol. The first transmitted reference symbol includes a symbol and a cyclically shifted portion of the symbol having a cyclic shift length. The second transmitted reference symbol includes a cyclically shifted version of the first transmitted reference symbol that is cyclically shifted relative to the first transmitted reference symbol by the cyclic shift length. The reference symbol is processed. In certain embodiments, processing the reference symbol can account for (i) a frame offset between uplink symbols and downlink symbols and (ii) another timing offset between downlink transmission and uplink reception.

公开(公告)号：US20220123986A1

公开(公告)日：2022-04-21

申请号：US17451232

申请日：2021-10-18

申请人： XCOM Labs, Inc.

发明人： Jing Jiang ,  Anthony Edet Ekpenyong ,  Mark Vernon Lane ,  Michael J Roe ,  Liang Mei ,  Hassan Ghozlan ,  Tamer Adel Kadous

IPC分类号： H04L27/26 ,  H04B7/06

摘要： Aspects of this disclosure relate receiving a reference symbol from at least one antenna. The reference symbol includes a portion of a first transmitted reference symbol and a portion of a second transmitted reference symbol. The first transmitted reference symbol includes a symbol and a cyclically shifted portion of the symbol having a cyclic shift length. The second transmitted reference symbol includes a cyclically shifted version of the first transmitted reference symbol that is cyclically shifted relative to the first transmitted reference symbol by the cyclic shift length. The reference symbol is processed. In certain embodiments, processing the reference symbol can account for (i) a frame offset between uplink symbols and downlink symbols and (ii) another timing offset between downlink transmission and uplink reception.